package com.project.service;

import com.project.bean.BuyCarBean;

import java.util.List;

public interface IBuyCarService {
    public void add(BuyCarBean buyCar);
    
    public void delBuyCar(int buyCarId);
    
    public String updateNum(int buyCarId, int newNum);
    
    public List<BuyCarBean> findUserBuyCar(Long userNum);
    
    public void del(Long userNum);
}
